PWM DC-DC CONVERTER

文件：216.65 Kbytes 页数：7 Pages

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PWM DC-DC CONVERTER WITH INTERNAL SWITCH AND SOFT-START

文件：190.45 Kbytes 页数：7 Pages

UTC

友顺

PWM DC-DC CONVERTER

文件：216.65 Kbytes 页数：7 Pages

UTC

友顺

PWM DC-DC CONVERTER

文件：216.65 Kbytes 页数：7 Pages

UTC

友顺

PWM DC-DC CONVERTER

文件：216.65 Kbytes 页数：7 Pages

UTC

友顺

PWM DC-DC CONVERTER

文件：216.65 Kbytes 页数：7 Pages

UTC

友顺

PWM DC-DC CONVERTER

文件：216.65 Kbytes 页数：7 Pages

UTC

友顺

ADVANCED PWM STEP-UP DC-DC CONVERTER

The UTC UC3551 is a step-up DC/DC converter with high efficiency and low start-up voltage. It is operaded in stable waveforms without external compensate. This device incorporates an adaptive current mode PWM control loop in which an error amplifier, ramp generator, comparator, switch pass element a high switching rate which is up to 450 \n·KHz, making the external component counts less required. \n·Moreover, it features 17μA low quiescent current, which makes the \n·battery life longer. The low start-up input voltage below 1V makes \n·UTC UC3551 suitable for 1 to 4 battery cells applications o;

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PWM DC-DC CONVERTER WITH INTERNAL SWITCH AND SOFT-START

The UTC UC3552 is a step-up PWM DC-DC converter with a internal switch which is 1.6A, 0.23Ω. UTC UC3552 offers usersflexibility in determining loop dynamics and adjusting operating frequency cause it’s equipped with an external compensation pin ,and it also allows the use of small, low equivalent re · 1.6A, 0.23Ω, internal switch \n· High efficiency: 90% \n· Adjustable output: VDD to 12V \n· Adjustable frequency: 640kHz or 1.3MHz \n· Wide input range: +2.6V ~ +5.5V \n· Low shutdown current: 0.1µA \n· Programmable soft-start;

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DC/DC switching regulators

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